admission-control
Safeguard articles tagged "admission-control" — guides, analysis, and best practices for software supply chain and application security.
18 articles
Best Kubernetes admission control tools
A practical comparison of Kubernetes admission control tools — OPA/Gatekeeper, Kyverno, Kubewarden, Styra, jsPolicy, and Polaris — with real strengths, limits, and evaluation criteria.
Writing Rego policies for Kubernetes admission control and CI gates
Open Policy Agent graduated CNCF on Jan 29, 2021 — yet most teams still ship Rego with no default-deny, turning a policy gate into a rubber stamp.
Container and Kubernetes scanning in agent-driven DevOps, without new trust boundaries
Autonomous agents that rebuild and redeploy containers can patch a CVE in under an hour — or become a new privileged path to production if scanning isn't gated.
A hands-on introduction to Rego for Kubernetes admission control
OPA graduated CNCF on January 29, 2021, and Rego v1 became the default syntax in OPA v1.0.0 (Dec 2024) — here's how to write your first admission-control policies.
Kubernetes Admission Controllers for Security
Admission controllers are the policy chokepoint between a validated API request and a running workload. Used well, they enforce your entire security posture. Here is how validating webhooks, Kyverno, OPA, and the new CEL-based policies fit together.
Pod Security Standards: The Complete Guide
PodSecurityPolicy is gone. Pod Security Admission and the three Pod Security Standards are how you enforce baseline and restricted profiles in modern Kubernetes — here is how to adopt them without breaking workloads.
Kubernetes Security Tools: What to Use and Why
A Kubernetes security tool covers one slice of cluster risk — image scanning, admission control, runtime detection, or posture. Here is how to combine them.
How to Write a Kubernetes Security Policy That Holds Up
A Kubernetes security policy is the set of enforced rules that decide what workloads may run and how. This guide covers Pod Security Standards, admission control, and turning intent into rules the cluster actually enforces.
How Snyk IaC's admission-time Kubernetes scanning differs...
How Snyk IaC's static manifest scanning, the Snyk Controller's in-cluster monitoring, and true Kubernetes admission control mechanically differ — and why the gap between them matters.
Rego Policy Examples: Practical Rules for Policy-as-Code
Real Rego policy examples you can adapt today — from denying privileged containers to gating deployments on vulnerability severity — with the language patterns that make them readable.
Kubernetes 1.30 and 1.31 Security Rundown
ValidatingAdmissionPolicy GA, VolumeSource for OCI artifacts, and anonymous API cleanup: what 1.30 and 1.31 change for cluster security posture.
How to Enforce Cosign Signatures in Kubernetes Admission
A hands-on tutorial for blocking unsigned container images at the Kubernetes admission layer using Cosign, Sigstore policy-controller, and keyless verification.
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